imageref

[<Axel.Nennker@telekom.de>]

Hi,

 

the image data contained in the information card xml takes most of the space needed to store a card in the cardstore.

This space requirements make it difficult to store the whole card on a UICC or "secure element" on a mobile phone where memory space is limited.

 

We suggest that there should be a new element in the IMI standard that allows to store a reference to the image data in the card.

 

Kind regards
Axel Nennker

 

 

Namespaces Referenced          
ic09    http://docs.oasis-open.org/imi/ns/identity-200903      
ic      http://schemas.xmlsoap.org/ws/2005/05/identity 
Submission – New optional ic:InformationCard element
Card Image Reference
  <xs:element name="CardImageRef" type="CardImageRefType" />
  <xs:element name="CardImageRefType" minOccurs="0" maxOccurs="unbounded" >
    <xs:complexType>
        <xs:attribute name="Uri" type="xs:anyURI" use="required"/>
        <xs:attribute name="MimeType" type="tns:LogoImageType" use="required"/>
        <xs:attribute name="size" type="xs:positiveInteger" use="optional"/>
        <xs:attribute name="digest-sha1" type="xs:string" use="optional"/>
        <xs:attribute name="width" type="xs:positiveInteger" use="optional"/>
        <xs:attribute name="height" type="xs:positiveInteger" use="optional"/>
    </xs:complexType>
  </xs:element>

ic:InformationCard\ic09:CardImageRef

This OPTIONAL element, when present, is intended to provide a link to the card image. The selector MAY choose which image to display by choosing based on MimeType, size, width and/or height.

Reasons for this submission are:
- to save space in the Information Card. The current CardImage element stores the whole image in the xml data. If several cards share the same image then the savings are even more obvious.

- to save time when an Information Card is transferred from a card store in the cloud. The selector can now cache the card image instead of retrieving it on each invokation.

- to choose the optimal card image based on the current environment (display size, memory size, supported mime types, ...)

- the memory space on mobile devices (phones, smartcards, …) might prevent the CardImage to be stored. The CardImageRef provides an alternative to not-storing the image on the mobile device.

 

Deutsche Telekom AG
Laboratories
Axel Nennker
Ernst-Reuter-Platz 7, 10587 Berlin, Germany
+49 30 3497-3256 (Phone)
+49 391 53479551 (Fax)
+49 170 2275312 (Mobile)
E-Mail: axel.nennker@telekom.de
www.telekom.com

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